Traction-engine.



Patented Aug. 14, I900. R. CUUTANT-DUJUUR.

TRACTION ENGINE.

(Application filed Feb. 9, 1899.)

3 Sheets-Sheet I.

(No Model.)

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(Application filed Feb. ,9, 1899.)

3 Sheets-Sheet 2 (No Model.)

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Patented Au'g. l4, I900.

TRACTION ENGINE.

(Application filed Feb. 9, 1899.)

3 Sheets-S1105; 3

(No Model.)

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TED STAT RAOUL couTANr-nUJoUR, or PARIS, FRANCE, ASSIGNOR or ONE-(HALF TO EMILE SALMSON, or SAME PLACE.

TRACTION-ENGINE.

. SJPEQIFICATION forming part of Letters Patent No. 655,690, dated August 14, 1900.

Application filed February 9, 1899. Serial No. 705,082. (No model.)

To all whom it may concern:

Be it known that I, RAoUL COUTANT-DU- JOUR, a citizen of the Republic of France, residing at Paris, France, have invented certain newand useful Improvements in or Relatin g to Traction-Engines and Road-Rollers, (for which application for Letters Patent has been made in Great Britain, No. 520, dated 9th day of January, 1899, andin France, No. 279,660, dated July 12, 1898,) of which the following is a specification.

The present invention relates to improve= ments in traction-engines 0r road rollers such as are used for rolling of macadamiz'ed roads, whereby it IS intended to replace the steam= roller or traction-engine generally used by a in Fig. 2, a plan correspondingto Fig. 1, showing part of the machine removed in order to permit the transmission-gearing for driving and change of direction of movement to be seen. Fig. 3 is a detail sectional elevation of the brake devices. Fig. t is an end elevation, partly in section, of the parts seen in Fig. 3. Fig. 5 is a plan view of the parts seen in Figs. 3 and 4..

The crank-shaft CL of the motor m, which revolves in the direction indicated by the arrow, is provided onthe side opposite the flywheel with a toothed pinion h, which through gearing c' transmits the movement to an intermediate shaft b. The same gearing 1', by

thereon, as well as pinions 0 and 19, which are also connected to the coupling-drums. These pinions 0 and p serve to transmit the movement to the vehicle in one or the other direc- '.tion, according as one or the other pinion is coupled to its shaft by means of a central wheel q, secured to a'shaft d, which also car- I ries at one end another pinion s, geared to the toothed rim or wheel 1, secured to the road wheel of the vehicle.

Theintermediate pinions 0 andp, with their shafts c and b, are alternately coupled by means of a double pivoted lever f, worked by a hand-lever e and rod 9'. The ends of the double-armed leverf are connected to or act upon sleeves 2t and so, working on ribs on the intermediate shafts b and 0, respectively, in

such manner that as the arms of the doublearmed leverfare moved in one or the other direction by means of the hand lever 6 so one or the other of the two intermediate pinions 0 and p, which, as has been explained be-z on the boss y of a brake, the shoes of which press against the intermediate pinions 0 and p or coupling=drums, so that the roller can be stopped even on roads of steep declivity.

The brake comprises a balance-lever 'n, provided at each end with a brake-shoe and traversed by the shaft (1, which passes through an oblong orifice or vertical slot, so as to allow of a vertical displacement of the said lever a relatively to the shaft (Z. On this balanced lever is fixed a stirrup or bracket y, provided in the central part with a shoulder or bend projecting downward, on which operates a roller arranged at the end of the arm 0" of a lever f, which is suitably curved. When one or the other of the gear-wheels 71; or Z is in operation-in other words, when traveling in one or the other direction-the roller of the lever-arm r will be in one or the other raised portions of the stirrup, and consequently the double brake will be out of operation. If

rises, owing to the roller of the lever-arm r being brought under the projecting bend of the stirrup, whereupon thebrake-shoes of the said lever are pressed powerfully against the exterior cylindrical parts of the gears 70 and Z, by which means the movement is stopped even on the steepest inclines.

I claim- In a tractionengine or road-roller driven by petroleum or other oil, gearing COIIJPIIS-V ing a double-armed lever acting on coupling-drums in such a manner as to cause one or other of two pinions on intermediate driving'shafts rotating in opposite directions to engage with and drive the one aifecting the onward movement of a central pinion on a shaft from which the road-wheel of the vehicle is driven, while the other pinion for driving in the opposite direction is out of gear, said lever also serving for the purpose of applying a brake against both coupling-drums when both pinions are out of gear, substantially as described. I

In testimony whereof I have hereto set my hand in the presence of the two subscribing witnesses.

RAOUL COUTANT-DUJOUR. Witnesses:

LOUIS SULLIGER, I EDWARD P. MACLEAN. 

